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Quiz 11
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Q.1
Which of the following welding method uses a pool of molten metal?
Carbon arc welding
Submerged arc welding
TIG arc welding
MIG arc welding
Q.2
The blank diameter used in thread rolling will be
equal to minor diameter of the thread
equal to pitch diameter of the thread
a little larger than the minor diameter of the thread
a little larger than the pitch diameter of the thread
Q.3
The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called
Shearing
Piercing
Punching
Blanking
Q.4
Spot welding is used for welding
Lap joints in plates having 0.025 mm to 1.25 mm thickness
Lap joints in plates having thickness above 3 mm
Butt joints in plates having 0.025 mm to 1.25 mm thickness
Butt joints in plates having thickness above 3 mm
Q.5
A ring gauge is used to
Check the diameter of shafts or studs
Test the accuracy of holes
Check the clearance between two mating surfaces
All of the above
Q.6
Blanking and piercing operations can be performed simultaneously in a
simple die
progressive die
compound die
combination die
Q.7
A saw which cuts wood during the return stroke of the saw is known as
push saw
pull saw or draw saw
Q.8
Which of the following material can be used for making patterns?
Aluminium
Wax
Lead
All of these
Q.9
Galvanising is a
zinc diffusion process
process of coating zinc by hot dipping
process used for making thin phosphate coating on steel
none of the above
Q.10
The recrystallisation temperature of steel is
400°C
600°C
800°C
None of these
Q.11
Lancing is the operation of
Cutting a sheet of metal in a straight line along the length
Removal of metal to the desired shape from the edge of a plate
Cutting a sheet of metal through part of its length and then bending the cut portion
Bending a sheet of metal along a curved axis
Q.12
A jolt machine is used to
Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
Ram the sand harder at the back of the mould and softer on the pattern face
Produce uniform sand hardness throughout the mould
Produce uniform packing of sand in the mould
Q.13
The type of file used for a wood work is
single-cut file
double cut file
rasp-cut file
any one of these
Q.14
In sheet metal work, he cutting force on the tool can be reduced by
Grinding the cutting edges sharp
Increasing the hardness of tool
Providing shear on tool
Increasing the hardness of die
Q.15
The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is
Less than 0.1 percent
Less than 0.3 percent
More than 0.3 percent
Anywhere between 0.1 to 1 percent
Q.16
The tolerance produced by shell moulding process of casting is
+0.05 mm
±0.2 mm
+0.5 mm
±1 mm
Q.17
The diaphragm moulding machine is used to
Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
Ram the sand harder at the back of the mould and softer on the pattern face
Produce uniform packing of sand in the mould
Give uniform sand hardness throughout the mould
Q.18
A pattern maker's shrinkage rule considers
all pattern allowances
only shrinkage allowance
all materials to be cast
all materials of the pattern
Q.19
The algebraic difference between the minimum limit and the basic size is called
actual deviation
upper deviation
lower deviation
fundamental deviation
Q.20
In welding copper alloys with TIG arc welding
direct current with straight polarity is used
direct current with reversed polarity is used
alternating current is used
any one of these
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